Zales (NYSE:ZLC) leadership problems

Zales Corp (NYSE:ZLC) announced the sudden resignation of their COO. Ms Sue Gove also resigned from the Board. This is all very sudden with no replacement insight. All this after the sudden resignation of the CEO less than two months ago. If the board is unhappy than they should replace key officers. I wonder if there is a plan and why it cannot be announced. Losing the two top officials with no replacement announcement makes you wonder whose hand is on the steering wheel. Very hard to invest unless you know all the facts.